USAF Active Duty from 2000-2013, I was a K9 handler for over half of my time. Currently with ND Air National Guard.
Best story I got: I was dispatched to a irate person trying to gain access to base, Nellis AFB, NV, he was denied entry because he wasn't wearing proper PPE on a motorcycle. He didn't like the answer/rules and wanted to file a complaint against me. He goes in visitor center to call the Law Enforcement desk. Few minutes later I get a call over the radio to detain this guy. So I go in with my dog and another cop. I asked the guy to turn around and put the phone down.(his back was toward me). After 5 times of asking him he finally turns to me, I take the phone and instruct my patrolman to detain this guy. Well the guy proceeded to punch and kick my patrol to the point of over powering him. He then came towards me and my pup.....My dog is trained for handler protection and he did his job well!!!! After a few mins of my dog mauling him, which seemed like forever, he decided he didn't want to fight anymore. Place looked like a murder scene! As K9 say....Talk Shit, Get Bit!